Centos5 with IOmeter

fabbie · 01-20-2010, 01:19 AM

Hi experts,
Did anyone encounter with an issue whereby the iometer's dynamo being run in Centos5 would corrupt the HDD's filesystem?

I experienced an issue like that, and I loss plenty of data because of the incident. A few server's HDD were corrupted.

The known issues in the official website is pretty outdated. Any idea on this? Are these issues fixed?
http://www.iometer.org/doc/issues.html

I was using Iometer_2006_07_27_linux.

Thanks.

unSpawn · 01-23-2010, 02:30 AM

I haven't got a clue but why would you be running Iometer_2006_07_27 when Sourceforge lists the latest release as iometer-2008-06-22-rc2?

fabbie · 01-24-2010, 09:50 PM

I went to the official iometer website and it only had 2006 for the latest download.
Anyway, the root cause of the issue was running the iometer on a logical volume instead of a physical volume.

Thank you very much.
--Fabian

jackchen858 · 10-03-2010, 08:46 AM

Quote:

Originally Posted by fabbie

I went to the official iometer website and it only had 2006 for the latest download.
Anyway, the root cause of the issue was running the iometer on a logical volume instead of a physical volume.

Thank you very much.
--Fabian

Heck, I downloaded the same version from offical site and it also corrupted a LVM partition on my VM. Luckily it's just a test VM. The VM is running 64bit Centos 5.4, iometer website only provided a 32bit linux package, not sure if this is the problem.

jackchen858 · 10-03-2010, 08:59 AM

Quote:

Originally Posted by fabbie

Anyway, the root cause of the issue was running the iometer on a logical volume instead of a physical volume.

Thank you very much.
--Fabian

I doubt this is the case. I run iometer on Windows and dynamo on Linux VM, on Windows iometer, it shows the "/" partition ( a LV) with a red "/", so I didn't even try it.

I choose /dev/sda2, which is a PV, after the testing, /dev/sda2 is corrupted.

fabbie · 10-04-2010, 02:11 AM

You /dev/sda2 was partitioned as Linux Native or Linux LVM?
I tested the IOmeter on a filesystem whose block device was partitioned as Linux Native and everything was fine. It corrupted the block device partitioned as LVM though.

jackchen858 · 10-05-2010, 04:23 PM

Quote:

Originally Posted by fabbie

You /dev/sda2 was partitioned as Linux Native or Linux LVM?
I tested the IOmeter on a filesystem whose block device was partitioned as Linux Native and everything was fine. It corrupted the block device partitioned as LVM though.

yes. /dev/sda2 is a LVM.